2026湘少版五年级上英语易错语法讲义Unit3

26湘少版五上英语易错语法讲义

Unit3Icanemailmyfriendswiththe

computer语法+专项练习

第一部分：高频易错点模块（按错误率排序）

易错点一：情态动词can后动词形式错误

1.易错精讲

核心定义：情态动词can表示"能、会"，后面必须跟动词原形，不能加to，也不能加-ing或加-

s。

结构类型构成例句

肯定句主语+can+动词原形Icanemailmyfriends.

否定句主语+cannot/can't+动词原Shecan'tplaycomputergamestoo

形often.

一般疑问句Can+主语+动词原形?Canyouusethecomputer?

特殊疑问句疑问词+can+主语+动词原形?Whatcanyoudowiththe

computer?

2.易错点提示

错误1：Hecantodrawwiththecomputer.

正确：Hecandrawwiththecomputer.

解析：can后加动词原形，不能加to。

错误2：Shecanplayingcomputergames.

正确：Shecanplaycomputergames.

解析：can后不能加-ing形式。

错误3：Hecansemailhisfriends.

正确：Hecanemailhisfriends.

解析：情态动词can没有人称和数的变化，不能加-s。

口诀技巧："can是帮手本领强，后面动词原形上；不加to不加ing，人称单数不变样。"

3.小练笔

一、单项选择。

1.Ican______informationonthecomputer.

A.search

B.tosearch

C.searching

2.Myfather______usethecomputerwell.

A.can

B.cans

C.canto

3.Whatcanyou______withthecomputer?

A.does

B.doing

C.do

二、改错。

4.Shecantosendgreetingsonline.

→___________________________________________

5.Theycanplayingcomputergamesonweekends.

→___________________________________________

6.Mybrothercanstakeonlinelessons.

→___________________________________________

4.答题点拨

答案：1.A

|

2.A

|

3.C

4.Shecansendgreetingsonline.

5.Theycanplaycomputergamesonweekends.

6.Mybrothercantakeonlinelessons.

解析：第1题can后接动词原形search。第2题can没有人称变化，用can。第3题can后接动词原形

do。第4题去掉to。第5题playing改为play。第6题cans改为can。

易错点二：一般疑问句"Canyou...?"及肯否定回答

1.易错精讲

核心定义：用"Can+主语+动词原形?"提问，询问对方能否做某事。肯定回答用"Yes,主语+

can."，否定回答用"No,主语+can't."

问句肯定回答否定回答

Canyouemailyourfriends?Yes,Ican.No,Ican't.

Canshedrawwiththecomputer?Yes,shecan.No,shecan't.

Cantheyplaygames?Yes,theycan.No,theycan't.

2.易错点提示

错误1：Canyouusethecomputer?—Yes,Ido.

正确：—Yes,Ican.

解析：Can问必须用can回答，不能用do/am等。

错误2：Canheemailhisfriends?—No,hedoesn't.

正确：—No,hecan't.

解析：否定回答用can't，不能用doesn't。

错误3：Canweplaygames?—Yes,wecan't.

正确：—Yes,wecan.

解析：肯定回答不能出现not。

口诀技巧："Can问Can答，Yes主加can；No主加can't，千万不要乱。"

3.小练笔

一、单项选择。

1.—Canyoutakeonlinelessons?—______.Idoiteveryday.

A.Yes,Ido

B.Yes,Ican

C.No,Ican't

2.—CanLinglingdrawwiththecomputer?—______.Sheisgoodatit.

A.Yes,shecan

B.Yes,shedoes

C.No,shecan't

3.—CanIuseyourcomputer?—______.Hereyouare.

A.Yes,youcan

B.Yes,youdo

C.No,youcan't

二、按要求改写句子。

4.Hecansendgreetings.(改为一般疑问句)

→___________________________________________

5.Canyoursisterusethecomputer?(作否定回答)

→___________________________________________

6.Theycanplaycomputergames.(改为一般疑问句，并作肯定回答)

问句：________________________________

答句：________________________________

4.答题点拨

答案：1.B

|

2.A

|

3.A

4.Canhesendgreetings?

5.No,shecan't.

6.问句：Cantheyplaycomputergames?答句：Yes,theycan.

解析：第1题Can问用can答。第2题主语Lingling用she，肯定回答Yes,shecan。第3题请求允

许，肯定回答Yes,youcan。第4题can提前。第5题否定用No,shecan't。第6题can提前，复数

主语they。

易错点三：否定句"can't"的使用与位置

1.易错精讲

核心定义：can的否定形式是cannot（正式）或can't（口语/书面常用），放在主语之后、动词

原形之前。

主语肯定句否定句

IIcansearchforinformation.Ican'tsearchforinformation.

He/SheShecandraw.Shecan'tdraw.

We/TheyTheycanplaygames.Theycan'tplaygames.

2.易错点提示

错误1：Hedon'tcanusethecomputer.

正确：Hecan'tusethecomputer.

解析：can的否定直接加not，不需要用don't。

错误2：Shecan'ttotakeonlinelessons.

正确：Shecan'ttakeonlinelessons.

解析：can't后仍接动词原形，不能加to。

错误3：Icannotplaygamestoooften.(未缩写时not位置错误)

正确：Icannotplaygamestoooften.

解析：cannot是连写的一个词，can和not不能分开。

口诀技巧："否定句子很简单，can后面加not；中间不要加doto，cannot或can't记心间。"

3.小练笔

一、单项选择。

1.You______playcomputergamestoooften.It'sbadforyoureyes.

A.can

B.can't

C.aren't

2.Mylittlebrother______writeanemail.Heisonly3.

A.can't

B.can

C.doesn't

3.I'mbusynow.I______gowithyou.

A.can't

B.can

C.amnot

二、改错。

4.Shedoesn'tcansendgreetingsbyemail.

→___________________________________________

5.Wecannottoplaycomputergamesafter9pm.

→___________________________________________

6.Hecan'tdrawingonthecomputer.

→___________________________________________

4.答题点拨

答案：1.B

|

2.A

|

3.A

4.Shecan'tsendgreetingsbyemail.

5.Wecan'tplaycomputergamesafter9pm.

6.Hecan'tdrawonthecomputer.

解析：第1题对眼睛不好，用can't。第2题3岁不会写邮件，用can't。第3题忙不能去，用can't。

第4题doesn'tcan改为can't。第5题去掉to，cannot连写为can't。第6题drawing改为draw。

第二部分：综合训练模块（Unit3）

一、用括号内单词的适当形式填空。（8分）

1.Ican______(email)myfriendswiththecomputer.

2.She______(can)playcomputergamestoooften.(改为否定句，用缩写)

3.What______(do)youdowiththecomputer?—Ican______(search)forinformation.

4.—Canyou______(draw)withthecomputer?—Yes,I______(can).

5.Dongdong______(want)toplaycomputergames,butLinglingsaysno.

6.Myfather______(buy)acomputerformeyesterday.

7.Wecan______(use)thecomputertotakeonline______(lesson).

8.______(can)yourbrothersendanemail?—No,he______(can).

二、单项选择。（10分）

1.—______youemailyourfriends?—Yes,Ican.

A.Are

B.Do

C.Can

2.Withthecomputer,Ican______.

A.playinggames

B.playgames

C.toplaygames

3.Don'tplaycomputergames______often.It'snotgood.

A.too

B.to

C.two

4.LinglingshowsDongdonghow______information.

A.searchfor

B.tosearchfor

C.searchingfor

5.—Canshetakeonlinelessons?—______.Shelikesitverymuch.

A.No,shecan't

B.Yes,shecan

C.Yes,shedoes

6.Mycomputerisvery______.Icandomanythingswithit.

A.useful

B.bad

C.old

7.Hecan______hisfriendsinAustralia.

A.emails

B.emailing

C.email

8.—CanIuseyourpen?—______.Hereyouare.

A.No,youcan't

B.Yes,youcan

C.Sorry

9.Weshould______thecomputerproperly.

A.use

B.touse

C.uses

10.Theboy______todrawwiththecomputer,buthecan't.

A.want

B.wants

C.wanting

三、句型转换。（6分）

1.Icansearchforinformationonthecomputer.(改为一般疑问句)

→___________________________________________

2.Shecansendgreetingstoheraunt.(改为否定句)

→___________________________________________

3.Hecandrawandpaintwiththecomputer.(对划线部分提问，划线部分为drawand

paint)

→___________________________________________

4.Canyoutakeonlinelessons?(作肯定回答)

→___________________________________________

5.Theycanplaycomputergamesonweekends.(改为一般疑问句，并作否定回答)

问句：________________________________

答句：________________________________

6.Myfatherbuysacomputerforme.(用can改写，表达"我爸爸能给我买电脑吗？")

→___________________________________________

四、补全对话。（5分）

从方框中选择合适的句子补全对话，有一项多余。

A.Canyouteachme?B.Whatcanyoudowithit?C.Icanemailmyfriends.

D.Don'tplaycomputerE.Yes,Ican.F.CanIplaycomputer

gamestoooften.games?

对话：

Dongdong:Dad,thankyouforthecomputer.

Dad:You'rewelcome.(1)__________

Dongdong:Icansearchforinformation.Icantakeonlinelessons,too.

Dad:Great!(2)__________

Dongdong:(3)__________

Dad:Sure,butnottoooften.

Dongdong:(4)__________

Dad:OK.Let'slearntogether.

(Tenminuteslater)

Dongdong:Thisisfun!

Dad:Remember,(5)__________It'sbadforyoureyes.

26湘少版五上英语易错语法讲义

Unit3参考答案与解析

第三部分：参考答案与逐题解析

一、用括号内单词的适当形式填空。（8分）

答案：

1.email

2.can't

3.do;search

4.draw;can

5.wants

6.bought

7.use;lessons

8.Can;can't

解析：

第1题：can后接动词原形email。

第2题：can的否定缩写形式can't。

第3题：特殊疑问句Whatdoyoudo?助动词do；can后接动词原形search。

第4题：Canyou...?后接原形draw；肯定回答用can。

第5题：主语Dongdong三单，一般现在时用wants。

第6题：yesterday提示一般过去时，buy的过去式bought。

第7题：can后用use原形；takeonlinelessons用复数。

第8题：一般疑问句Can开头；否定回答No,hecan't。

二、单项选择。（10分）

答案：1.C

2.B

3.A

4.B

5.B

6.A

7.C

8.B

9.A

10.B

解析：

第1题：询问能力用Can。

第2题：can后接动词原形p